φιλοσοφεῖν (philosophein)

φιλοσοφεῖν is an Ancient Greek form of φιλοσοφέω, meaning “study philosophy”. It is the present active infinitive.

Found 168 times in the Ancient Greek texts on Socratos.

Where it is used

Diogenes Laertius, Vitae philosophorum 2.3.7: … κοῖς γεγενῆσθαι αὐτὸν τῇ ἑβδομηκοστῇ Ὀλυμπιάδι, τεθνηκέναι δὲ τῷ πρώτῳ ἔτει τῆς ὀγδοηκοστῆς ὀγδόης. ἤρξατο δὲ φιλοσοφεῖν Ἀθήνησιν ἐπὶ Καλλίου, ἐτῶν εἴκοσιν ὤν, ὥς φησι Δημήτριος ὁ Φαληρεὺς ἐν τῇ τῶν Ἀρχόντων ἀναγραφῇ, ἔνθα καί φασ …

All forms of φιλοσοφέω (conjugation table)

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.